2003 Cadillac CTS

Computer problem
2003 Cadillac CTS 6 cyl Front Wheel Drive Automatic 680000 miles

i went to the dealer to see why the check engine light came on in my car. I was told I have a faulty thermostat. How serious is this? Can I still drive the car?
Bory blue
December 2, 2009.

A faulty thermostat can cause engine overheating so I would not recommend driving it until it is fixed.

Thanks man

Bory blue
Dec 3, 2009.